Respirator.



W. l. GOGKE.

RE SPIRATOR.

APPLICATION FILED MAR. 6, 1910.

- 7 Patented Oct. 31, 1911.

INVENTOR scription.

ed portion 6, so that the threaded portion ATEN OFFICE.

WILLIAM I. COCKE. 0F PORT WASHINGTON, NEW YORK.

RESPIRATOR.

Specification of Letters Patent.

Patented Oct. 31, 1911.

Application filed March 5, 1910. Serial No. 547,531.

To all whom it'may concern:

Be it known that I, WILLIAM I. GooKE, a citizen of the United States, and a resident of Port Washington, in the county of Nassau and State of New York, have invented a new and Improved Respirator, of which the following-is a full, clear, and exact de- My invention relates to respirators of the kind used to supply fresh air from a dis tance to a person sleeping in aroom or exposed to inconvenience or danger from breathing poisonous and noxious gases.

More particularly stated my invention comprehends a mask to be applied to the wearers face, and held in position by a strap or the like, a flexible tube connecting the maskwith the outer atmosphere through the medium of an inlet valve; the mask being further provided with an outlet valve for discharging the air as the same is breathed.

My invention further comprehends various details of construction relating to the valves and their location.

Reference is to be had to the accompanying drawings, forming'a part of this specification, in which similar characters of reference denote corresponding parts in all the views and in which Figure 1 is a perspective of my invention as used by a sleeping person; Fig. 2 is a central section through the mask and parts immediately associated therewith; Fig. 3 is a-view of the mechanism appearing in Fig; 2 but showing it as seen by a person standing at the right of said Fig. 2; Fig. 4 is a detail showing an outlet valve; Fig. 5 is a detail showing in section a sleeve provided with a grating and connected with the air pipe for admitting air to the mask.

A mask 6 of any suitable material, such as metal, papier-mach, rubber, or undulated fiber is provided with a thickened portion 7 and with a rounded portion 6. A ring 8 threaded externally is provided with an annular flange 9, which is fitted into the roundof the ring protrudes slightly therefrom. A cage 10 having generally an annular form is threaded internally and fitted upon the protruding portion of the ring'8. The cage 10 is rovided with a baflle plate 11 and with slbts 12. Between the ring 8 and the baflle plate 11 is a little space in which fits a valve member 14 which is simply a disk. The mask 6 is further provided with an annular flange 15 extending inwardly. Fit-- ting into this annular flange is an annular sleeve 16 threaded internally and provided externally with an annular flange 17. A

bafile plate 18 is carried by the sleeve 16.-

The annular sleeve 16 is provided with slots 20 which separate the integral portions 19 of the sleeve from each other, thereby comprising a cage through which air may pass into the mask. A barrel 21 is provided with an annular portion 22 threaded externally and is further provided with an annular shoulder 23, e latter being adapted to lodge against t e flange 15. By turning the barrel 21-so that the threaded portion 22 screws into the annular sleeve 16, the shoulder 23 lodges against the annular flange 15. A valve member 24 of thin material is disposed between the baflie plate 18 and the adjacent threaded end 22 of the barrel 21. A flexible tube 25 is connected with a sleeve 26 and mounted upon the latter is a grating 27, secured thereto by aid of an annular cap 28. The sleeve 26 extends through a window sash 29, or other barrier separating the interior of the room from the outer atmos' phere. A strap. 30 is provided with buttonholes 31 which engage buttons 32 mounted upon opposite sides of-the mask. In order to tighten or loosen the strap 30 it is properly adjusted with reference to a predetermined buttonhole, through which the corresponding button 32 extends.

The operation of my deviceis as follows: The mask being donned by the wearer and held in position by aid of the strap 30 which 25 belng connected as described, the operator need pay-no further attention to the appais properly adjusted, and the flexible tube v ratus; he simply breathes naturally and may go to sleep. Each time he exhales a breath of air the atmospheric pressure 'within the mask 6 is increased slightly, so that the valve 14 being exceedingly light is moved slightly outward thereby permitting free egress of the air thus exhaled. Each time he draws in a breath of air the valve member 14 closes and the atmospheric pressure within the mask being thus slightly diminished the valve member 24 moves inward, that is, sleeve 21, and air now enters the mask.

Having thus described my invention, I

away from the adjacent end of the i unating claim as new and desire to secure by Letters Patent:

A device of the character described comprising a mask having an annular flange integral therewith and extending inwardly thereof, a barrel provided with an annular shoulder engaging said annular flange, said barrel being further provided with a portion threaded externally and bounded by the said shoulder, a sleeveclosed at one end and provided with slots, said sleeve being further provided with a threaded portion said threaded portion of said barrel and extending between the same and said menses annular flange, said sleeve being further provided with an annular flange extending externally of said sleeve, and a dis valve mounted loosely within said sleeve and adapted to engage the adjacent end of said barrel as a seat.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM I. COCKE.

Witnesses:

W ALTON HARRISON, PHILIP D. RoLLHAUs. 

